This change is the result of a national study conducted for the Federal Highway Administration, which demonstrated that the new signals:• Help to prevent crashes• Move more traffic through an intersection• Provide additional traffic management flexibility

• It's safer - The study demonstrated that drivers made fewer mistakes with the new signals than with traditional left-turn arrow signals.• It's more efficient - The new signals provide traffic engineers with more options to handle variable traffic volumes.• It's more consistent - You'll see the same signals in every state because the new signals are being introduced throughout the United States.